Video footage of a woman on a foul-mouthed racist rant towards another passenger on a Limerick Irish Rail train has been reported to Gardai, Iarnrod Eireann has confirmed.

Twitter user @theBexWay uploaded the video and tweeted it at Irish Rail's Twitter account and said: "I'm on the train from Limerick listening to this anti-Indian racist train rant - over 10 minutes and she's still going."

The woman is filmed furiously ranting and tells a fellow passenger to f*** back to India when he refers to her as an old lady.

Issuing a statement in relation to the incident, a spokesperson for the rail company said:

"This was a shocking and disgraceful incident. Any type of abuse is intolerable, but especially discriminatory abuse. We have reported the incident to the Gardaí and would urge the person who took the footage to also contact the Gardaí."

"We, along with other transport providers work closely with the Immigrant Council of Ireland to prevent racist abuse," the statement added.

A Garda spokesman told the Irish Mirror: "We can confirm we are investigating and anyone with information is asked to contact Henry St Garda Station on 01 61 212 400."